Replace both rear brake rotors on a 2024 Model 3 Long Range AWD. The rear caliper uses an integrated electric parking brake (EPB) which must be placed in service mode via the touchscreen before the caliper can be retracted and removed.

Warnings

Tools required

Parts

• Rear brake rotors (matched pair, OEM or OEM-equivalent for Model 3 LR AWD) × 2 — Manufacturer-specified rear rotor for 2024 Model 3 Long Range AWD
• Rotor set screws (if damaged on removal) × 2 — OEM Tesla rotor retaining screw

Preparation

1. Park on level ground, place in P, and engage the parking brake.
2. Exit ALL doors with the key fob/phone key away from the vehicle. Wait at least 2 minutes for HV systems to fully de-energize, even on this non-HV job.
3. Before disconnecting 12V: on the touchscreen, go to Service > Brakes and enable 'Brake Service Mode' (or equivalent). This retracts the EPB and prevents it from re-engaging. Confirm message that service mode is active.
4. Disconnect the low-voltage battery. On 2024 Model 3, the 12V (Li-ion) battery is located under the rear floor area or behind the right rear seat back panel depending on build — refer to architecture notes and locate before starting.
5. DO NOT touch, cut, or pierce ANY orange cable — these are high-voltage and lethal.
6. If at any point you encounter an orange cable, an HV component, or are unsure if a system is de-energized: STOP and consult a Tesla-certified technician.
7. Loosen rear lug nuts while wheels are on the ground.
8. Lift the vehicle at Tesla-designated rear jack points using rubber pucks. Support on jack stands rated for the vehicle's weight.
9. Remove both rear wheels and set aside on a non-marring surface.

Procedure

1. 1

   Inspect and document
   Photograph the caliper, brake line, EPB connector routing, and any wear sensor harness before disassembly. Note rotor wear, lip thickness, and pad condition. Confirm the EPB is in service/retracted mode (no resistance when manually checking caliper).
2. 2

   Disconnect EPB connector (if required for caliper removal)
   Locate the electric parking brake harness connector at the rear caliper. If your method requires removing the caliper body fully, gently release the connector lock and unplug. If only swinging the caliper aside on the slides, the connector can remain attached — do not stress the harness.
   ⚠Do not pull on the EPB harness. The connector has a locking tab that must be released first.
3. 3

   Remove caliper slide pin bolts and lift caliper off
   Remove the two caliper slide pin bolts holding the caliper body to the bracket. Slide the caliper off the pads and support it with a hanger or bungee from the suspension — never let it hang by the brake hose or EPB harness.
   ⚠Never let the caliper hang by the flexible brake hose.
   Torque spec

   Caliper Slide Pin Bolts35 Nm (26 lb-ft)
4. 4

   Remove brake pads
   Slide the inner and outer pads out of the caliper bracket. Note the orientation of any wear shims or anti-rattle clips for reinstallation. Inspect pads — if near minimum thickness, plan to replace as a set with the rotors.
5. 5

   Remove caliper bracket bolts
   Remove the two caliper bracket-to-knuckle bolts. These are torqued high and may have factory threadlocker — use a long breaker bar. Remove the bracket and set aside.
   ⚠Do not pry against the aluminum knuckle with sharp tools — use a soft drift if needed.
   Torque spec

   Bracket Bolts102 Nm (75 lb-ft)
6. 6

   Remove rotor set screw and rotor
   Remove the small rotor retaining set screw (Torx). If the rotor is rust-bonded to the hub, apply penetrating oil at the hub center and tap the rotor face evenly with a dead-blow hammer or use the threaded jacking holes (if present) with appropriately sized bolts to push the rotor off. Do not strike with a steel hammer.
   ⚠Never use heat or impact on the wheel bearing area — Model 3 uses a sealed hub assembly.
   Torque spec

   Rotor Set Screws7 Nm (5 lb-ft)
7. 7

   Clean hub face
   Wire-brush the hub mating surface until bare metal is showing. Any rust or debris between hub and rotor will cause runout and pulsation. Wipe clean with brake cleaner. Optionally apply a very thin film of anti-seize to the hub center bore only — keep off the rotor friction surface and lug studs.
8. 8

   Repeat for opposite rear side
   Perform steps 2–7 on the other rear corner before reassembly so both sides are inspected and prepped together.

Reassembly

1. Wipe new rotors with brake cleaner to remove shipping oil from both friction surfaces.
2. Install the new rotor onto the hub, aligning the set screw hole. Install and snug the rotor set screw, then torque to spec.
3. Reinstall the caliper bracket onto the knuckle. Apply medium-strength threadlocker to the bracket bolt threads if not pre-applied. Torque the caliper bracket bolts to spec.
4. Reinstall pads into the bracket with any anti-rattle clips/shims oriented as removed.
5. Apply a light film of silicone brake grease to the caliper slide pins and verify they slide freely.
6. Reposition the caliper over the pads. Install the caliper slide pin bolts and torque to spec.
7. Reconnect the EPB harness connector if it was unplugged. Verify connector is fully seated and locked.
8. Reinstall both rear wheels. Hand-thread all lug nuts, then torque in a star pattern to spec once the vehicle is on the ground.
9. Lower vehicle to the ground.
10. Reconnect the 12V low-voltage battery.
11. Power up the vehicle. On the touchscreen, exit Brake Service Mode. The system will cycle the EPB actuators — listen for normal motor operation on both rear calipers.
12. With the vehicle stationary and brake pedal pressed, pump the pedal 5-10 times until firm to seat the pads against the new rotors before driving.

Verification

• Confirm the touchscreen shows no brake or EPB faults after exiting Brake Service Mode.
• Engage and release the parking brake several times via the touchscreen — listen for clean, symmetrical actuation from both rear calipers.
• At low speed in a safe area, perform several light stops to verify even braking and no pulling. Then perform a moderate stop to confirm pedal firmness.
• Bed-in the new rotors per the rotor manufacturer's procedure (typically 6-10 progressively harder stops from ~40 mph to ~10 mph without coming to a complete stop, then a cool-down drive).
• After a short test drive, recheck wheel lug nut torque in star pattern.
• Visually inspect for any fluid leaks at the caliper or hose fittings (none should exist on a rotor-only job — if present, investigate immediately).
• Reminder: Tesla recommends brake fluid replacement every 2 years regardless of mileage — log this date if fluid was not serviced during this job.

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